vmbus: make hv_get_ringbuffer_availbytes local

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The last use of hv_get_ringbuffer_availbytes in drivers is now
gone. Only used by the debug info routine so make it static. Also, add
READ_ONCE() to avoid any possible issues with potentially volatile
index values.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Stephen Hemminger 2017-12-01 11:01:49 -08:00 • committed by David S. Miller

parent f5a2255010

commit 0487426fed

2 changed files with 23 additions and 22 deletions

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22

include/linux/hyperv.h

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